CUET · PHYSICS · PYQ PAPER 2023
An ac source has a frequency of 60 Hz. The time taken for the voltage to change from peak value to zero is :
- A \(\frac{1}{240}\) s
- B \(\frac{1}{120}\) s
- C \(\frac{1}{60}\) s
- D \(\frac{1}{180}\) s
Answer & Solution
Correct Answer
(A) \(\frac{1}{240}\) s
Step-by-step Solution
Detailed explanation
\( t = \frac{1}{4f} \) \( t = \frac{1}{4 \times 60} = \frac{1}{240} \text{ s} \)
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